What is 18650 lithium battery?

18650 battery：18 means a diameter of 18mm, 65 means a length of 65mm, and 0 means a cylindrical battery. 18650 means that the diameter is 18 mm and the length is 65 mm.

EVE 26V 18650 2550mAh 7.5A - Button Top Battery

Molicel P30B 18650 3000mAh 30A Battery

LG MJ1 INR 18650 3500mAh 3.7V High-Drain 10A Lithium Ion (Li-ion) Unprotected Flat Top Battery - Bulk

Buy Rechargeable 18650 Battery online, Lithium Ion 3.7 V

Streamlight-18650-Lithium-Ion-Battery

Everything You Need to Know About the 18650 Battery

4-Pack of ICR 18650 Blue Lithium-Ion Rechargeable Batteries - 3.7V 2600mAh

18650 Lithium-ion Rechargeable Cell - 2500mAh 3.7V 20A

18650 Batteries - High Quality Rechargeable Lithium-ion Batteries

3.6V NMC 18650 Cell - Energy Storage System Solutions Provider「POWEROAD」

3.6v Rechargeable Li-ion 26650 4200mAh Battery – Battery World

The complete guide to the 18650 rechargeable battery-Tycorun Batteries

Panasonic-Japan NCR18650B 18650 (Genuine) battery Li-ion 3.7V 3400mAh | Free battery holder included | Fast Shipping | Orbtronic.

NCR18650B 18650 Battery Panasonic-Japan 3400mAh Li-ion 3.7V Flat Top Rechargeable -Battery Case Included